Mounting design for an acoustic protection screen for a motor vehicle

By integrating an open-cell foam washer between the fixing part and screen, the vibration transmission issue is mitigated, enhancing sound insulation performance.

FR3168823A1Pending Publication Date: 2026-05-29TREVES PROD
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Patent Information

Authority / Receiving Office
FR · FR
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-11-25
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing mounting architectures for acoustic protection screens in motor vehicles transmit significant vibrations from the vehicle's support to the screen, causing acoustic discomfort for passengers.

Method used

Incorporating a washer made of elastically compressible material, such as open-cell foam, between the fixing part and the screen's peripheral zone to attenuate vibration transmission.

Benefits of technology

Significantly increases transmission loss in medium and high frequencies, improving sound insulation by up to 13 dB and 5 dB respectively, compared to architectures without and with closed-cell foam washers.

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Abstract

The invention relates to an architecture (1) for mounting a soundproof screen (2) for a motor vehicle on a support (14) fixed to the body of said vehicle, said architecture comprising a fixing piece (3) including a fixing portion (4) and a head (6), a fixing hole (7) provided in said screen, a receiving means (8) for said fixing portion provided in said support, said head bearing against the periphery of said hole, said architecture further comprising a washer (9) made of elastically compressible material disposed in compression between said head and a peripheral zone extending around said hole, so as to attenuate the transmission of vibrations from said support to said screen by said fixing piece. Figure 1
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Citation Information

Patent Citations

  • Fastening arrangement for door lining part of interior at door carrier part of automobile, has decoupling device with sleeve element accommodated by decoupling element and lining part held at carrier part over decoupling device

    DE102009036048A1

  • Door lining part fastening arrangement for automobile, has connection arrangement for connecting lining part at body shell, where lining part is connected with body shell under interpositioning decoupling element of arrangement

    DE102009036729A1

  • Installation of an acoustic protection screen for a motor vehicle engine

    FR3095787A1